high Known exploitedREV. 01

CVE-2024-29059.NET Framework — leaked object reference enables execution

Microsoft's managed runtime (.NET Framework) exposes an object reference address in an error, and an attacker who reads it reaches the remoting endpoint behind it — which ends in code running on the server.

YOUR NEXT MOVE

Install the Microsoft update for this CVE now; exploitation probability is near certain, so also check whether any service still exposes remoting at all.

Read the risk

THE VITAL STATS
CVSS score
7.5/ 10
CVSS v3.1
EPSS probability
99%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2024-03-23
Added to KEV
2025-02-04
Exploit published
Not recorded
Confidence
high
Kill chain
initial access
MITRE ATT&CK
—
Severity
high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attacker needsThe ability to trigger and read the error response.

Behind the card

3 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2024-29059 · CRDS 0.1 · Issued 2026-09-24